44 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I3I 



Genus CALOHIERAX Wetmore 



Calohlcrax Wetmore, Bull. Mus. Comp. Z06I., vol. 80, No. 12, October 1937, 

 p. 428. Type, by original designation, Calohierax quadrattis Wetmore. 



Calohierax quadratus Wetmore 



Calohierax quadratus Wetmore, Bull. Mus. Comp. Z06I., vol. 80, No. 12, 

 October 1937, p. 429, figs. 1-3. 



Recent (extinct) : °* Cave deposits on Great Exuma Island, Ba- 

 hama Islands. 



Genus MIOHIERAX Howard 



Miohierax Howard, Condor, vol. 46, No. 5, Sept. 27, 1944, p. 236. Type, by 

 original designation, Miohierax stocki Howard. 



Miohierax stocki Howard 



Miohierax stocki Howard, Condor, vol. 46, No. 5, Sept. 27, 1944, p. 236, 

 fig. 40. 



Late Lower Miocene (Tick Canyon formation) : Near head of 

 Vasquez Canyon, Los Angeles County, California. 



Genus HYPOMORPHNUS Cabanis " 



Hypomorphnus Cabanis, Arch. Naturg., vol. 10, Bd. i, 1844, p. 263. Type, by 

 original designation, Falco urubitinga Linnaeus, 



Hypomorphnus enectus (Wetmore) 



Urubitinga cnccta Wetmore, Bull. Amer. Mus. Nat. Hist., vol. 48, art. 12, 

 Dec. 3, 1923, p. 500, figs. 14-18. 



Middle Miocene (Lower Sheep Creek beds) : 20 miles south of 

 Agate, Sioux County, Nebraska. 



Hypomorphnus sodalis (SnuFELDT)f'^ 

 Aquila sodalis Shufeldt, Amer. Nat., vol. 25, No. 297, September 1891, p. 821. 



Late Pleistocene: Fossil Lake, Oregon. 



Genus TITANOHIERAX Wetmore 



Tilanohicrax Wetmore, Bull. Mus. Comp. Zool., vol. 80, No. 12, October 

 I937i P- 430. Type, by original designation, Tilanohicrax gloveralleni 

 Wetmore. 



** Included here since it has not been found in living form, being known only 

 from its bones. 



^* For the use of Hypomorphnus to replace Urubitinga see Peters, Check-list 

 of the birds of tiie world, vol. i, 1931, p. 244. 



''^ Generic allocation questionable. See Howard, Carnegie Inst. Washington 

 Publ. 551, Jan. 25, 1946, pp. 177-178. 



